<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script>
        // function suprise() {
        //     alert("我是惊喜！");
        // }
    </script>
    <script src="./js/button.js" type="text/javascript"></script>
</head>
<body>
    <button onclick="suprise()">点我有惊喜</button>
    
</body>
</html>